| West | W | L | Pct | GB |
| Texas | 88 | 74 | .543 | -- |
| Anaheim | 85 | 77 | .525 | 3.0 |
| Seattle | 76 | 85 | .472 | 11.5 |
| Oakland | 74 | 88 | .457 | 14.0 |
| Date | Pitcher | Hand | Age | Game Result | Opp | GS# | Career | Dec | IP | H | R | ER | HR | BB | SO | Pit | Bal | Str | Str% | W-L | ERA | WHIP |
| 1998-03-31 | Randy Johnson | L | 35 | W 9-10 | vs CLE | 1 | 254 | - | 5.2 | 11 | 6 | 5 | 1 | 2 | 7 | 0 | 0 | 0 | -- | 0-0 | 7.50 | 2.17 |
| 1998-04-01 | Jamie Moyer | L | 35 | W 7-9 | vs CLE | 1 | 229 | L | 4.2 | 11 | 7 | 5 | 2 | 0 | 2 | 0 | 0 | 0 | -- | 0-1 | 9.00 | 2.20 |
| 1998-04-03 | Ken Cloude | R | 23 | L 11-6 | vs BOS | 1 | 10 | W | 6.0 | 7 | 4 | 4 | 2 | 3 | 2 | 0 | 0 | 0 | -- | 1-0 | 6.00 | 1.67 |
| 1998-04-04 | Bill Swift | R | 36 | L 12-6 | vs BOS | 1 | 195 | W | 5.0 | 5 | 4 | 3 | 0 | 4 | 1 | 0 | 0 | 0 | -- | 1-0 | 5.40 | 1.80 |
| 1998-04-05 | Randy Johnson | L | 35 | W 5-10 | vs BOS | 2 | 255 | L | 6.0 | 6 | 7 | 7 | 1 | 4 | 10 | 0 | 0 | 0 | -- | 0-1 | 9.00 | 1.92 |
| 1998-04-06 | Jamie Moyer | L | 35 | L 8-0 | vs NYA | 2 | 230 | W | 7.0 | 3 | 0 | 0 | 0 | 1 | 11 | 0 | 0 | 0 | -- | 1-1 | 3.75 | 1.25 |
| 1998-04-07 | Jim Bullinger | R | 33 | W 7-13 | vs NYA | 1 | 89 | L | 3.1 | 12 | 10 | 10 | 3 | 0 | 2 | 0 | 0 | 0 | -- | 0-1 | 15.00 | 2.50 |
| 1998-04-08 | Ken Cloude | R | 23 | W 3-4 | vs NYA | 2 | 11 | - | 6.2 | 6 | 2 | 2 | 0 | 4 | 2 | 0 | 0 | 0 | -- | 1-0 | 4.15 | 1.54 |
| 1998-04-10 | Randy Johnson | L | 35 | L 7-9 | @ BOS | 3 | 256 | - | 8.0 | 2 | 2 | 2 | 1 | 3 | 15 | 0 | 0 | 0 | -- | 0-1 | 6.30 | 1.40 |
| 1998-04-11 | Jamie Moyer | L | 35 | L 0-5 | @ BOS | 3 | 231 | L | 6.0 | 11 | 5 | 5 | 1 | 0 | 4 | 0 | 0 | 0 | -- | 1-2 | 5.00 | 1.44 |
| 1998-04-12 | Jeff Fassero | L | 35 | L 7-8 | @ BOS | 1 | 136 | - | 5.1 | 5 | 3 | 2 | 1 | 1 | 2 | 88 | 34 | 54 | 61% | 0-0 | 3.60 | 1.20 |
| 1998-04-13 | Ken Cloude | R | 23 | L 5-6 | @ CLE | 3 | 12 | L | 5.0 | 6 | 4 | 4 | 0 | 2 | 2 | 92 | 37 | 55 | 60% | 1-1 | 5.00 | 1.56 |
| 1998-04-14 | Bill Swift | R | 36 | L 3-8 | @ CLE | 2 | 196 | - | 6.0 | 4 | 3 | 3 | 1 | 6 | 4 | 107 | 55 | 52 | 49% | 1-0 | 4.91 | 1.73 |
| 1998-04-15 | Randy Johnson | L | 35 | W 5-3 | @ CLE | 4 | 257 | - | 2.1 | 1 | 1 | 1 | 1 | 1 | 4 | 0 | 0 | 0 | -- | 0-1 | 6.14 | 1.36 |
| 1998-04-16 | Jamie Moyer | L | 35 | W 3-2 | @ MIN | 4 | 232 | - | 7.0 | 7 | 2 | 2 | 0 | 2 | 6 | 101 | 40 | 61 | 60% | 1-2 | 4.32 | 1.40 |
| 1998-04-17 | Jeff Fassero | L | 35 | W 11-6 | @ MIN | 2 | 137 | W | 7.0 | 6 | 2 | 2 | 1 | 1 | 4 | 86 | 33 | 53 | 62% | 1-0 | 3.00 | 1.08 |
| 1998-04-18 | Ken Cloude | R | 23 | W 5-3 | @ MIN | 4 | 13 | W | 5.0 | 5 | 3 | 3 | 2 | 5 | 2 | 107 | 45 | 62 | 58% | 2-1 | 5.09 | 1.65 |
| 1998-04-19 | Bill Swift | R | 36 | W 7-4 | @ MIN | 3 | 197 | W | 6.0 | 6 | 4 | 2 | 0 | 1 | 4 | 79 | 28 | 51 | 65% | 2-0 | 4.24 | 1.53 |
| 1998-04-20 | Randy Johnson | L | 35 | L 8-7 | vs KCA | 5 | 258 | - | 3.1 | 8 | 6 | 6 | 1 | 3 | 3 | 0 | 0 | 0 | -- | 0-1 | 7.56 | 1.64 |
| 1998-04-21 | Jamie Moyer | L | 35 | W 3-5 | vs KCA | 5 | 233 | - | 7.0 | 5 | 2 | 2 | 0 | 1 | 6 | 119 | 41 | 78 | 66% | 1-2 | 3.94 | 1.28 |
| 1998-04-22 | Jeff Fassero | L | 35 | L 11-5 | vs KCA | 3 | 138 | W | 7.0 | 7 | 5 | 5 | 3 | 3 | 6 | 0 | 0 | 0 | -- | 2-0 | 4.26 | 1.21 |
| 1998-04-24 | Ken Cloude | R | 23 | L 4-2 | vs MIN | 5 | 14 | W | 7.1 | 5 | 1 | 1 | 1 | 2 | 7 | 107 | 36 | 71 | 66% | 3-1 | 4.20 | 1.50 |
| 1998-04-25 | Bill Swift | R | 36 | W 2-8 | vs MIN | 4 | 198 | - | 7.0 | 5 | 2 | 2 | 1 | 1 | 2 | 92 | 31 | 61 | 66% | 2-0 | 3.75 | 1.33 |
| 1998-04-26 | Jamie Moyer | L | 35 | W 0-2 | vs MIN | 6 | 234 | L | 9.0 | 5 | 2 | 2 | 0 | 1 | 5 | 112 | 44 | 68 | 61% | 1-3 | 3.51 | 1.15 |
| 1998-04-28 | Randy Johnson | L | 35 | W 5-1 | @ KCA | 6 | 259 | W | 7.0 | 5 | 1 | 1 | 0 | 4 | 9 | 124 | 50 | 74 | 60% | 1-1 | 6.19 | 1.56 |
| 1998-04-29 | Jeff Fassero | L | 35 | L 5-8 | @ NYA | 4 | 139 | L | 5.0 | 7 | 6 | 2 | 3 | 3 | 4 | 108 | 45 | 63 | 58% | 2-1 | 4.13 | 1.38 |
| 1998-04-30 | Ken Cloude | R | 23 | L 8-9 | @ NYA | 6 | 15 | - | 4.2 | 7 | 4 | 4 | 2 | 3 | 5 | 104 | 43 | 61 | 59% | 3-1 | 4.63 | 1.57 |
| 1998-05-01 | Bill Swift | R | 37 | W 3-17 | vs DET | 5 | 199 | L | 4.0 | 10 | 10 | 10 | 1 | 1 | 1 | 82 | 35 | 47 | 57% | 2-1 | 6.43 | 1.54 |
| 1998-05-02 | Jamie Moyer | L | 35 | L 4-0 | vs DET | 7 | 235 | W | 9.0 | 3 | 0 | 0 | 0 | 2 | 7 | 116 | 44 | 72 | 62% | 2-3 | 2.88 | 1.04 |
| 1998-05-03 | Randy Johnson | L | 35 | L 10-6 | vs DET | 7 | 260 | W | 7.0 | 8 | 6 | 6 | 0 | 5 | 11 | 142 | 58 | 84 | 59% | 2-1 | 6.46 | 1.62 |
| 1998-05-05 | Jeff Fassero | L | 35 | L 8-1 | vs CHA | 5 | 140 | W | 9.0 | 3 | 1 | 1 | 1 | 2 | 5 | 102 | 36 | 66 | 65% | 3-1 | 3.27 | 1.15 |
| 1998-05-06 | Ken Cloude | R | 23 | L 10-9 | vs CHA | 7 | 16 | - | 5.0 | 7 | 4 | 4 | 1 | 4 | 2 | 85 | 35 | 50 | 59% | 3-1 | 4.95 | 1.65 |
| 1998-05-07 | Jamie Moyer | L | 35 | W 0-6 | vs TOR | 8 | 236 | L | 6.0 | 9 | 5 | 5 | 1 | 1 | 4 | 98 | 34 | 64 | 65% | 2-4 | 3.38 | 1.11 |
| 1998-05-08 | Randy Johnson | L | 35 | L 8-3 | vs TOR | 8 | 261 | W | 6.0 | 7 | 3 | 3 | 1 | 3 | 7 | 113 | 43 | 70 | 62% | 3-1 | 6.20 | 1.62 |
| 1998-05-09 | Bill Swift | R | 37 | W 1-4 | vs TOR | 6 | 200 | L | 5.2 | 7 | 3 | 3 | 0 | 3 | 3 | 104 | 44 | 60 | 58% | 2-2 | 6.09 | 1.56 |
| 1998-05-10 | Jeff Fassero | L | 35 | L 3-1 | vs TOR | 6 | 141 | W | 7.1 | 4 | 0 | 0 | 0 | 3 | 7 | 119 | 46 | 73 | 61% | 4-1 | 2.63 | 1.10 |
| 1998-05-12 | Jamie Moyer | L | 36 | W 4-2 | @ DET | 9 | 237 | - | 7.0 | 4 | 0 | 0 | 0 | 3 | 3 | 89 | 35 | 54 | 61% | 2-4 | 3.00 | 1.10 |
| 1998-05-13 | Ken Cloude | R | 23 | L 5-8 | @ DET | 8 | 17 | L | 2.0 | 5 | 6 | 5 | 2 | 2 | 0 | 43 | 20 | 23 | 53% | 3-2 | 5.79 | 1.74 |
| 1998-05-14 | Randy Johnson | L | 35 | L 3-5 | @ CHA | 9 | 262 | L | 7.0 | 7 | 5 | 5 | 2 | 2 | 7 | 122 | 47 | 75 | 61% | 3-2 | 6.23 | 1.58 |
| 1998-05-15 | Bill Swift | R | 37 | L 3-6 | @ CHA | 7 | 201 | L | 3.2 | 7 | 6 | 4 | 1 | 1 | 1 | 71 | 26 | 45 | 63% | 2-3 | 6.57 | 1.65 |
| 1998-05-16 | Jeff Fassero | L | 35 | W 8-1 | @ TOR | 7 | 142 | W | 8.1 | 5 | 1 | 1 | 1 | 1 | 6 | 123 | 43 | 80 | 65% | 5-1 | 2.39 | 1.04 |
| 1998-05-17 | Jamie Moyer | L | 36 | L 3-4 | @ TOR | 10 | 238 | - | 6.2 | 7 | 3 | 3 | 0 | 2 | 4 | 97 | 43 | 54 | 56% | 2-4 | 3.13 | 1.13 |
| 1998-05-18 | Ken Cloude | R | 23 | W 9-4 | @ TOR | 9 | 18 | - | 2.2 | 5 | 3 | 3 | 0 | 4 | 3 | 70 | 38 | 32 | 46% | 3-2 | 6.14 | 1.86 |
| 1998-05-19 | Randy Johnson | L | 35 | L 4-10 | @ TEX | 10 | 263 | L | 3.0 | 5 | 6 | 6 | 1 | 1 | 2 | 59 | 27 | 32 | 54% | 3-3 | 6.87 | 1.60 |
| 1998-05-20 | Bill Swift | R | 37 | L 7-8 | @ TEX | 8 | 202 | - | 5.0 | 7 | 3 | 3 | 1 | 0 | 4 | 86 | 32 | 54 | 63% | 2-3 | 6.43 | 1.62 |
| 1998-05-21 | Jeff Fassero | L | 35 | L 8-9 | @ TEX | 8 | 143 | - | 7.0 | 10 | 5 | 4 | 1 | 1 | 2 | 109 | 40 | 69 | 63% | 5-1 | 2.73 | 1.11 |
| 1998-05-22 | Jamie Moyer | L | 36 | W 2-5 | vs TBA | 11 | 239 | L | 7.1 | 11 | 4 | 4 | 1 | 0 | 4 | 132 | 51 | 81 | 61% | 2-5 | 3.27 | 1.16 |
| 1998-05-23 | Ken Cloude | R | 23 | W 3-6 | vs TBA | 10 | 19 | - | 7.0 | 3 | 0 | 0 | 0 | 2 | 11 | 0 | 0 | 0 | -- | 3-2 | 5.29 | 1.71 |
| 1998-05-24 | Randy Johnson | L | 35 | L 3-1 | vs TBA | 11 | 264 | W | 9.0 | 7 | 1 | 1 | 0 | 2 | 15 | 135 | 42 | 93 | 69% | 4-3 | 6.05 | 1.52 |
| 1998-05-25 | Bill Swift | R | 37 | L 12-4 | vs BAL | 9 | 203 | W | 6.0 | 6 | 2 | 2 | 0 | 2 | 1 | 85 | 38 | 47 | 55% | 3-3 | 6.00 | 1.58 |
| 1998-05-26 | Jeff Fassero | L | 35 | W 3-8 | vs BAL | 9 | 144 | L | 2.2 | 7 | 6 | 6 | 1 | 1 | 5 | 65 | 24 | 41 | 63% | 5-2 | 3.51 | 1.19 |
| 1998-05-28 | Jamie Moyer | L | 36 | W 5-2 | @ TBA | 12 | 240 | W | 8.0 | 8 | 0 | 0 | 0 | 1 | 4 | 124 | 45 | 79 | 64% | 3-5 | 2.96 | 1.15 |
| 1998-05-29 | Randy Johnson | L | 35 | W 6-2 | @ TBA | 12 | 265 | W | 8.0 | 3 | 2 | 1 | 0 | 2 | 10 | 119 | 34 | 85 | 71% | 5-3 | 5.50 | 1.42 |
| 1998-05-30 | Ken Cloude | R | 23 | L 2-5 | @ TBA | 11 | 20 | L | 4.2 | 8 | 5 | 5 | 0 | 4 | 2 | 75 | 26 | 49 | 65% | 3-3 | 5.63 | 1.77 |
| 1998-05-31 | Bill Swift | R | 37 | W 11-6 | @ TBA | 10 | 204 | W | 5.2 | 5 | 3 | 1 | 0 | 1 | 3 | 97 | 40 | 57 | 59% | 4-3 | 5.50 | 1.52 |
| 1998-06-01 | Jeff Fassero | L | 35 | L 9-10 | @ BAL | 10 | 145 | - | 4.0 | 8 | 6 | 3 | 1 | 2 | 5 | 96 | 39 | 57 | 59% | 5-2 | 3.71 | 1.27 |
| 1998-06-02 | Jamie Moyer | L | 36 | L 8-9 | @ BAL | 13 | 241 | - | 5.0 | 9 | 7 | 7 | 3 | 2 | 2 | 82 | 33 | 49 | 60% | 3-5 | 3.50 | 1.21 |
| 1998-06-03 | Randy Johnson | L | 35 | W 1-8 | vs ANA | 13 | 266 | L | 6.2 | 9 | 6 | 5 | 1 | 3 | 5 | 133 | 54 | 79 | 59% | 5-4 | 5.58 | 1.44 |
| 1998-06-04 | Ken Cloude | R | 23 | W 2-6 | vs ANA | 12 | 21 | L | 6.1 | 9 | 4 | 4 | 2 | 1 | 5 | 108 | 39 | 69 | 64% | 3-4 | 5.66 | 1.76 |
| 1998-06-05 | Bill Swift | R | 37 | L 4-0 | vs LAN | 11 | 205 | W | 6.1 | 9 | 0 | 0 | 0 | 1 | 3 | 94 | 33 | 61 | 65% | 5-3 | 4.95 | 1.53 |
| 1998-06-06 | Jeff Fassero | L | 35 | W 6-10 | vs LAN | 11 | 146 | - | 4.0 | 5 | 6 | 5 | 0 | 4 | 3 | 74 | 35 | 39 | 53% | 5-2 | 4.16 | 1.33 |
| 1998-06-07 | Jamie Moyer | L | 36 | W 4-7 | vs LAN | 14 | 242 | L | 5.1 | 8 | 7 | 7 | 2 | 1 | 5 | 93 | 32 | 61 | 66% | 3-6 | 3.98 | 1.24 |
| 1998-06-08 | Randy Johnson | L | 35 | L 3-4 | @ SFN | 14 | 267 | L | 7.0 | 6 | 4 | 2 | 1 | 3 | 10 | 99 | 34 | 65 | 66% | 5-5 | 5.34 | 1.43 |
| 1998-06-09 | Ken Cloude | R | 23 | L 6-7 | @ SFN | 13 | 22 | L | 2.2 | 6 | 5 | 5 | 1 | 1 | 3 | 67 | 31 | 36 | 54% | 3-5 | 6.09 | 1.78 |
| 1998-06-10 | Bill Swift | R | 37 | W 4-1 | @ SFN | 12 | 206 | W | 7.0 | 5 | 1 | 1 | 0 | 0 | 7 | 94 | 32 | 62 | 66% | 6-3 | 4.57 | 1.45 |
| 1998-06-11 | Jeff Fassero | L | 35 | L 2-5 | @ OAK | 12 | 147 | L | 8.0 | 7 | 5 | 4 | 0 | 4 | 5 | 134 | 57 | 77 | 57% | 5-3 | 4.20 | 1.33 |
| 1998-06-12 | Jamie Moyer | L | 36 | W 5-0 | @ OAK | 15 | 243 | W | 9.0 | 3 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | -- | 4-6 | 3.63 | 1.16 |
| 1998-06-13 | Randy Johnson | L | 35 | L 3-7 | @ OAK | 15 | 268 | L | 7.0 | 8 | 7 | 7 | 1 | 6 | 7 | 0 | 0 | 0 | -- | 5-6 | 5.61 | 1.47 |
| 1998-06-14 | Ken Cloude | R | 23 | L 3-4 | @ OAK | 14 | 23 | - | 6.1 | 2 | 2 | 2 | 0 | 2 | 6 | 92 | 36 | 56 | 61% | 3-5 | 5.83 | 1.69 |
| 1998-06-16 | Bill Swift | R | 37 | L 2-3 | @ ANA | 13 | 207 | L | 2.0 | 4 | 2 | 1 | 0 | 0 | 2 | 43 | 13 | 30 | 70% | 6-4 | 4.57 | 1.46 |
| 1998-06-17 | Jeff Fassero | L | 35 | L 2-4 | @ ANA | 13 | 148 | L | 7.0 | 9 | 4 | 4 | 1 | 1 | 4 | 111 | 34 | 77 | 69% | 5-4 | 4.28 | 1.34 |
| 1998-06-18 | Jamie Moyer | L | 36 | L 5-11 | @ ANA | 16 | 244 | - | 6.0 | 8 | 4 | 2 | 0 | 1 | 2 | 111 | 43 | 68 | 61% | 4-6 | 3.60 | 1.18 |
| 1998-06-19 | Randy Johnson | L | 35 | L 9-1 | vs OAK | 16 | 269 | W | 8.0 | 8 | 1 | 0 | 0 | 2 | 12 | 133 | 48 | 85 | 64% | 6-6 | 5.17 | 1.46 |
| 1998-06-20 | Ken Cloude | R | 23 | W 2-6 | vs OAK | 15 | 24 | L | 5.0 | 8 | 6 | 6 | 2 | 2 | 4 | 110 | 35 | 75 | 68% | 3-6 | 6.16 | 1.71 |
| 1998-06-21 | Bill Swift | R | 37 | L 10-5 | vs OAK | 14 | 208 | W | 6.1 | 5 | 3 | 3 | 1 | 4 | 5 | 111 | 46 | 65 | 59% | 7-4 | 4.50 | 1.45 |
| 1998-06-22 | Jeff Fassero | L | 35 | W 3-5 | vs SDN | 14 | 149 | L | 9.0 | 7 | 5 | 5 | 0 | 5 | 8 | 129 | 53 | 76 | 59% | 5-5 | 4.35 | 1.34 |
| 1998-06-23 | Jamie Moyer | L | 36 | L 5-3 | vs SDN | 17 | 245 | W | 8.0 | 8 | 3 | 3 | 0 | 0 | 3 | 104 | 36 | 68 | 65% | 5-6 | 3.58 | 1.17 |
| 1998-06-24 | Randy Johnson | L | 35 | W 2-1 | @ SDN | 17 | 270 | W | 9.0 | 6 | 1 | 1 | 1 | 0 | 12 | 127 | 41 | 86 | 68% | 7-6 | 4.83 | 1.39 |
| 1998-06-25 | Ken Cloude | R | 23 | L 0-6 | @ SDN | 16 | 25 | L | 6.0 | 7 | 3 | 3 | 0 | 2 | 3 | 79 | 29 | 50 | 63% | 3-7 | 6.04 | 1.70 |
| 1998-06-26 | Bill Swift | R | 37 | L 8-13 | @ ARI | 15 | 209 | - | 5.0 | 6 | 6 | 6 | 4 | 1 | 3 | 60 | 21 | 39 | 65% | 7-4 | 4.89 | 1.44 |
| 1998-06-27 | Jeff Fassero | L | 35 | W 6-4 | @ ARI | 15 | 150 | W | 6.2 | 7 | 2 | 2 | 1 | 0 | 9 | 99 | 30 | 69 | 70% | 6-5 | 4.27 | 1.33 |
| 1998-06-28 | Jamie Moyer | L | 36 | L 2-3 | @ ARI | 18 | 246 | - | 7.0 | 7 | 2 | 2 | 0 | 1 | 4 | 89 | 27 | 62 | 70% | 5-6 | 3.53 | 1.17 |
| 1998-06-30 | Randy Johnson | L | 35 | W 4-6 | vs COL | 18 | 271 | L | 8.0 | 10 | 6 | 4 | 1 | 1 | 12 | 135 | 43 | 92 | 68% | 7-7 | 4.81 | 1.39 |
| 1998-07-01 | Ken Cloude | R | 23 | L 9-5 | vs COL | 17 | 26 | W | 5.1 | 5 | 5 | 4 | 2 | 1 | 6 | 84 | 32 | 52 | 62% | 4-7 | 6.03 | 1.65 |
| 1998-07-02 | Bill Swift | R | 37 | L 10-3 | vs COL | 16 | 210 | W | 7.0 | 8 | 3 | 3 | 1 | 1 | 4 | 89 | 30 | 59 | 66% | 8-4 | 4.81 | 1.43 |
| 1998-07-03 | Jeff Fassero | L | 35 | W 8-2 | @ TEX | 16 | 151 | W | 7.1 | 6 | 0 | 0 | 0 | 0 | 3 | 104 | 40 | 64 | 62% | 7-5 | 3.94 | 1.29 |
| 1998-07-04 | Jamie Moyer | L | 36 | L 2-9 | @ TEX | 19 | 247 | L | 1.0 | 2 | 3 | 2 | 0 | 1 | 1 | 27 | 14 | 13 | 48% | 5-7 | 3.64 | 1.18 |
| 1998-07-05 | Randy Johnson | L | 35 | L 4-8 | @ TEX | 19 | 272 | L | 8.0 | 9 | 8 | 8 | 3 | 2 | 12 | 144 | 59 | 85 | 59% | 7-8 | 5.07 | 1.39 |
| 1998-07-09 | Jeff Fassero | L | 36 | L 8-6 | vs ANA | 17 | 152 | W | 6.2 | 7 | 5 | 4 | 0 | 5 | 7 | 116 | 51 | 65 | 56% | 8-5 | 4.05 | 1.32 |
| 1998-07-10 | Jamie Moyer | L | 36 | W 3-5 | vs ANA | 20 | 248 | - | 8.0 | 8 | 3 | 2 | 1 | 3 | 9 | 121 | 43 | 78 | 64% | 5-7 | 3.56 | 1.19 |
| 1998-07-11 | Randy Johnson | L | 35 | L 2-0 | vs ANA | 20 | 273 | W | 9.0 | 5 | 0 | 0 | 0 | 2 | 15 | 136 | 44 | 92 | 68% | 8-8 | 4.73 | 1.35 |
| 1998-07-12 | Bill Swift | R | 37 | W 5-8 | vs ANA | 17 | 211 | L | 6.0 | 10 | 7 | 7 | 1 | 1 | 1 | 100 | 42 | 58 | 58% | 8-5 | 5.17 | 1.46 |
| 1998-07-13 | Ken Cloude | R | 24 | L 10-3 | vs TEX | 18 | 27 | W | 8.0 | 8 | 3 | 2 | 0 | 3 | 4 | 118 | 45 | 73 | 62% | 5-7 | 5.72 | 1.63 |
| 1998-07-14 | Jeff Fassero | L | 36 | L 6-3 | vs TEX | 18 | 153 | W | 8.0 | 5 | 3 | 3 | 1 | 1 | 6 | 101 | 33 | 68 | 67% | 9-5 | 4.01 | 1.29 |
| 1998-07-15 | Jamie Moyer | L | 36 | L 4-1 | vs MIN | 21 | 249 | W | 8.0 | 4 | 1 | 1 | 0 | 2 | 1 | 90 | 34 | 56 | 62% | 6-7 | 3.42 | 1.17 |
| 1998-07-16 | Randy Johnson | L | 35 | L 3-0 | vs MIN | 21 | 274 | W | 9.0 | 1 | 0 | 0 | 0 | 3 | 11 | 136 | 48 | 88 | 65% | 9-8 | 4.44 | 1.29 |
| 1998-07-17 | Bill Swift | R | 37 | L 18-5 | vs KCA | 18 | 212 | W | 5.2 | 8 | 5 | 5 | 1 | 2 | 4 | 99 | 36 | 63 | 64% | 9-5 | 5.36 | 1.48 |
| 1998-07-18 | Ken Cloude | R | 24 | L 8-5 | vs KCA | 19 | 28 | - | 5.0 | 3 | 4 | 4 | 1 | 3 | 3 | 86 | 30 | 56 | 65% | 5-7 | 5.79 | 1.60 |
| 1998-07-19 | Jeff Fassero | L | 36 | W 1-4 | vs KCA | 19 | 154 | L | 9.0 | 8 | 4 | 2 | 1 | 2 | 5 | 124 | 43 | 81 | 65% | 9-6 | 3.87 | 1.27 |
| 1998-07-21 | Jamie Moyer | L | 36 | W 8-3 | @ TBA | 22 | 250 | W | 8.0 | 7 | 3 | 3 | 2 | 2 | 6 | 101 | 38 | 63 | 62% | 7-7 | 3.42 | 1.17 |
| 1998-07-22 | Randy Johnson | L | 35 | L 5-7 | @ TBA | 22 | 275 | L | 7.0 | 10 | 7 | 2 | 0 | 0 | 5 | 106 | 41 | 65 | 61% | 9-9 | 4.35 | 1.30 |
| 1998-07-24 | Bill Swift | R | 37 | L 4-7 | @ BAL | 19 | 213 | L | 4.0 | 10 | 5 | 5 | 3 | 1 | 2 | 80 | 25 | 55 | 69% | 9-6 | 5.59 | 1.53 |
| 1998-07-25 | Jeff Fassero | L | 36 | W 4-2 | @ BAL | 20 | 155 | W | 8.0 | 11 | 2 | 2 | 1 | 3 | 7 | 135 | 56 | 79 | 59% | 10-6 | 3.77 | 1.30 |
| 1998-07-26 | Jamie Moyer | L | 36 | W 10-4 | @ BAL | 23 | 251 | W | 7.0 | 6 | 4 | 4 | 1 | 0 | 4 | 97 | 34 | 63 | 65% | 8-7 | 3.50 | 1.15 |
| 1998-07-28 | Randy Johnson | L | 35 | W 3-4 | vs CLE | 23 | 276 | L | 9.0 | 4 | 4 | 4 | 2 | 6 | 12 | 141 | 51 | 90 | 64% | 9-10 | 4.33 | 1.29 |
| 1998-07-29 | Ken Cloude | R | 24 | W 7-8 | vs CLE | 20 | 29 | - | 3.1 | 9 | 5 | 6 | 0 | 4 | 2 | 83 | 34 | 49 | 59% | 5-7 | 6.14 | 1.68 |
| 1998-07-30 | Bill Swift | R | 37 | W 8-9 | vs CLE | 20 | 214 | - | 5.0 | 7 | 3 | 3 | 1 | 2 | 1 | 68 | 30 | 38 | 56% | 9-6 | 5.58 | 1.55 |
| 1998-07-31 | Jeff Fassero | L | 36 | W 3-5 | vs NYA | 21 | 156 | L | 9.0 | 12 | 5 | 5 | 3 | 3 | 8 | 140 | 56 | 84 | 60% | 10-7 | 3.85 | 1.32 |
| 1998-08-01 | Jamie Moyer | L | 36 | W 2-5 | vs NYA | 24 | 252 | L | 7.1 | 11 | 5 | 5 | 2 | 2 | 7 | 116 | 43 | 73 | 63% | 8-8 | 3.62 | 1.18 |
| 1998-08-02 | Paul Spoljaric | L | 28 | L 6-3 | vs NYA | 1 | 2 | - | 4.1 | 3 | 2 | 2 | 1 | 3 | 6 | 73 | 29 | 44 | 60% | 3-2 | 5.51 | 1.53 |
| 1998-08-03 | Ken Cloude | R | 24 | L 3-1 | vs BOS | 21 | 30 | W | 8.0 | 5 | 1 | 1 | 1 | 3 | 3 | 117 | 49 | 68 | 58% | 6-7 | 5.79 | 1.63 |
| 1998-08-04 | Bill Swift | R | 37 | W 1-2 | vs BOS | 21 | 215 | - | 5.2 | 4 | 1 | 1 | 0 | 3 | 6 | 100 | 44 | 56 | 56% | 9-6 | 5.37 | 1.53 |
| 1998-08-07 | Jeff Fassero | L | 36 | W 6-3 | @ DET | 22 | 157 | - | 5.2 | 3 | 1 | 1 | 1 | 2 | 3 | 94 | 45 | 49 | 52% | 10-7 | 3.75 | 1.30 |
| 1998-08-07 | Jamie Moyer | L | 36 | W 7-1 | @ DET | 25 | 253 | W | 6.2 | 8 | 1 | 1 | 0 | 3 | 2 | 101 | 38 | 63 | 62% | 9-8 | 3.53 | 1.20 |
| 1998-08-08 | Ken Cloude | R | 24 | W 9-3 | @ DET | 22 | 31 | W | 6.2 | 8 | 3 | 3 | 0 | 2 | 7 | 103 | 37 | 66 | 64% | 7-7 | 5.67 | 1.62 |
| 1998-08-09 | Bill Swift | R | 37 | W 6-3 | @ DET | 22 | 216 | - | 5.0 | 6 | 3 | 3 | 0 | 2 | 5 | 89 | 37 | 52 | 58% | 9-6 | 5.37 | 1.53 |
| 1998-08-11 | Jeff Fassero | L | 36 | L 4-7 | @ TOR | 23 | 158 | L | 6.2 | 8 | 6 | 6 | 0 | 2 | 6 | 121 | 45 | 76 | 63% | 10-8 | 3.93 | 1.31 |
| 1998-08-12 | Jamie Moyer | L | 36 | L 5-11 | @ TOR | 26 | 254 | - | 6.1 | 7 | 5 | 5 | 0 | 2 | 6 | 115 | 45 | 70 | 61% | 9-8 | 3.66 | 1.21 |
| 1998-08-14 | Ken Cloude | R | 24 | L 2-14 | @ CHA | 23 | 32 | L | 5.1 | 9 | 8 | 7 | 0 | 0 | 3 | 99 | 29 | 70 | 71% | 7-8 | 5.95 | 1.63 |
| 1998-08-15 | Bill Swift | R | 37 | W 13-7 | @ CHA | 23 | 217 | W | 5.0 | 5 | 2 | 1 | 0 | 2 | 4 | 64 | 23 | 41 | 64% | 10-6 | 5.23 | 1.52 |
| 1998-08-16 | Jeff Fassero | L | 36 | L 3-5 | @ CHA | 24 | 159 | L | 8.0 | 13 | 5 | 5 | 1 | 1 | 2 | 119 | 39 | 80 | 67% | 10-9 | 4.01 | 1.33 |
| 1998-08-17 | Jamie Moyer | L | 36 | L 3-1 | vs DET | 27 | 255 | W | 7.2 | 7 | 1 | 1 | 0 | 1 | 6 | 99 | 36 | 63 | 64% | 10-8 | 3.55 | 1.20 |
| 1998-08-18 | Paul Spoljaric | L | 28 | W 6-7 | vs DET | 2 | 3 | - | 5.0 | 4 | 2 | 2 | 0 | 4 | 6 | 92 | 42 | 50 | 54% | 3-2 | 5.37 | 1.53 |
| 1998-08-19 | Ken Cloude | R | 24 | W 2-16 | vs TOR | 24 | 33 | L | 2.0 | 5 | 6 | 6 | 4 | 2 | 0 | 50 | 21 | 29 | 58% | 7-9 | 6.29 | 1.66 |
| 1998-08-20 | Bill Swift | R | 37 | W 0-7 | vs TOR | 24 | 218 | L | 6.0 | 12 | 7 | 7 | 1 | 2 | 2 | 106 | 40 | 66 | 62% | 10-7 | 5.47 | 1.56 |
| 1998-08-21 | Jeff Fassero | L | 36 | L 5-4 | vs CHA | 25 | 160 | - | 7.0 | 6 | 4 | 2 | 1 | 4 | 4 | 130 | 49 | 81 | 62% | 10-9 | 3.95 | 1.34 |
| 1998-08-22 | Jamie Moyer | L | 36 | L 5-4 | vs CHA | 28 | 256 | - | 8.0 | 7 | 3 | 3 | 1 | 1 | 4 | 103 | 34 | 69 | 67% | 10-8 | 3.54 | 1.19 |
| 1998-08-23 | Paul Spoljaric | L | 28 | L 3-2 | vs CHA | 3 | 4 | W | 7.0 | 3 | 2 | 1 | 1 | 0 | 6 | 100 | 35 | 65 | 65% | 4-2 | 4.92 | 1.41 |
| 1998-08-24 | Ken Cloude | R | 24 | L 11-10 | vs CHA | 25 | 34 | W | 7.0 | 4 | 3 | 3 | 1 | 3 | 10 | 110 | 41 | 69 | 63% | 8-9 | 6.16 | 1.62 |
| 1998-08-25 | Bill Swift | R | 37 | L 4-10 | @ CLE | 25 | 219 | L | 4.0 | 7 | 6 | 6 | 1 | 5 | 0 | 92 | 46 | 46 | 50% | 10-8 | 5.71 | 1.60 |
| 1998-08-26 | Jeff Fassero | L | 36 | L 3-5 | @ CLE | 26 | 161 | L | 8.0 | 9 | 5 | 5 | 2 | 3 | 8 | 140 | 50 | 90 | 64% | 10-10 | 4.03 | 1.34 |
| 1998-08-27 | Jamie Moyer | L | 36 | W 10-4 | @ CLE | 29 | 257 | W | 6.0 | 9 | 4 | 4 | 2 | 2 | 4 | 112 | 40 | 72 | 64% | 11-8 | 3.62 | 1.21 |
| 1998-08-28 | Paul Spoljaric | L | 28 | L 3-10 | @ NYA | 4 | 5 | L | 3.0 | 9 | 9 | 9 | 1 | 2 | 1 | 75 | 28 | 47 | 63% | 4-3 | 5.91 | 1.51 |
| 1998-08-29 | Ken Cloude | R | 24 | L 6-11 | @ NYA | 26 | 35 | L | 3.1 | 12 | 9 | 8 | 1 | 3 | 2 | 105 | 46 | 59 | 56% | 8-10 | 6.55 | 1.70 |
| 1998-08-30 | Bill Swift | R | 37 | W 13-3 | @ NYA | 26 | 220 | W | 6.2 | 5 | 2 | 2 | 1 | 2 | 2 | 92 | 40 | 52 | 57% | 11-8 | 5.55 | 1.57 |
| 1998-08-31 | Jeff Fassero | L | 36 | L 1-5 | @ BOS | 27 | 162 | L | 7.1 | 8 | 5 | 5 | 1 | 3 | 7 | 115 | 46 | 69 | 60% | 10-11 | 4.12 | 1.35 |
| 1998-09-01 | Jamie Moyer | L | 36 | W 7-3 | @ BOS | 30 | 258 | W | 6.1 | 8 | 3 | 3 | 0 | 2 | 4 | 100 | 40 | 60 | 60% | 12-8 | 3.64 | 1.22 |
| 1998-09-02 | Mac Suzuki | R | 23 | L 3-7 | @ BOS | 1 | 1 | - | 6.1 | 3 | 2 | 2 | 0 | 4 | 1 | 89 | 38 | 51 | 57% | 0-0 | 3.00 | 1.17 |
| 1998-09-04 | Paul Spoljaric | L | 28 | W 1-10 | vs BAL | 5 | 6 | L | 3.2 | 4 | 6 | 0 | 3 | 2 | 6 | 68 | 28 | 40 | 59% | 4-4 | 5.66 | 1.53 |
| 1998-09-05 | Ken Cloude | R | 24 | L 6-5 | vs BAL | 27 | 36 | - | 5.0 | 6 | 4 | 3 | 1 | 9 | 3 | 113 | 61 | 52 | 46% | 8-10 | 6.51 | 1.74 |
| 1998-09-06 | Jeff Fassero | L | 36 | W 2-5 | vs BAL | 28 | 163 | L | 7.0 | 8 | 5 | 5 | 3 | 1 | 11 | 126 | 47 | 79 | 63% | 10-12 | 4.20 | 1.35 |
| 1998-09-07 | Jamie Moyer | L | 36 | L 11-1 | vs BAL | 31 | 259 | W | 7.0 | 2 | 1 | 0 | 0 | 0 | 6 | 109 | 42 | 67 | 61% | 13-8 | 3.52 | 1.19 |
| 1998-09-08 | Mac Suzuki | R | 23 | W 0-10 | vs TBA | 2 | 2 | L | 5.2 | 9 | 5 | 5 | 1 | 2 | 6 | 107 | 43 | 64 | 60% | 0-1 | 5.25 | 1.50 |
| 1998-09-09 | Paul Abbott | R | 31 | L 5-2 | vs TBA | 1 | 16 | W | 5.2 | 6 | 2 | 2 | 0 | 2 | 5 | 91 | 35 | 56 | 62% | 1-0 | 3.00 | 1.33 |
| 1998-09-11 | Jeff Fassero | L | 36 | W 6-3 | @ KCA | 29 | 164 | W | 8.0 | 5 | 3 | 3 | 2 | 1 | 2 | 94 | 31 | 63 | 67% | 11-12 | 4.17 | 1.33 |
| 1998-09-11 | Ken Cloude | R | 24 | L 5-8 | @ KCA | 28 | 37 | - | 1.2 | 3 | 2 | 2 | 1 | 0 | 0 | 32 | 12 | 20 | 63% | 8-10 | 6.55 | 1.74 |
| 1998-09-12 | Jamie Moyer | L | 36 | L 2-5 | @ KCA | 32 | 260 | L | 7.0 | 8 | 5 | 5 | 3 | 2 | 4 | 119 | 48 | 71 | 60% | 13-9 | 3.62 | 1.20 |
| 1998-09-14 | Mac Suzuki | R | 23 | W 10-3 | @ MIN | 3 | 3 | W | 6.1 | 5 | 2 | 2 | 0 | 4 | 8 | 106 | 42 | 64 | 60% | 1-1 | 4.50 | 1.50 |
| 1998-09-15 | Paul Abbott | R | 31 | W 12-7 | @ MIN | 2 | 17 | W | 5.0 | 7 | 4 | 4 | 1 | 2 | 6 | 84 | 28 | 56 | 67% | 2-0 | 4.91 | 1.55 |
| 1998-09-16 | Jeff Fassero | L | 36 | W 4-1 | @ OAK | 30 | 165 | W | 7.2 | 4 | 1 | 1 | 0 | 0 | 8 | 112 | 39 | 73 | 65% | 12-12 | 4.05 | 1.29 |
| 1998-09-17 | Jamie Moyer | L | 36 | W 8-0 | @ OAK | 33 | 261 | W | 9.0 | 4 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | -- | 14-9 | 3.47 | 1.17 |
| 1998-09-18 | Ken Cloude | R | 24 | W 5-3 | @ ANA | 29 | 38 | - | 6.0 | 6 | 3 | 3 | 1 | 0 | 5 | 85 | 26 | 59 | 69% | 8-10 | 6.46 | 1.71 |
| 1998-09-19 | Mac Suzuki | R | 23 | L 3-5 | @ ANA | 4 | 4 | - | 4.0 | 7 | 3 | 3 | 0 | 0 | 1 | 60 | 21 | 39 | 65% | 1-1 | 4.91 | 1.55 |
| 1998-09-20 | Paul Abbott | R | 31 | L 1-3 | @ ANA | 3 | 18 | L | 6.0 | 5 | 3 | 3 | 0 | 3 | 4 | 103 | 36 | 67 | 65% | 2-1 | 4.76 | 1.47 |
| 1998-09-21 | Jeff Fassero | L | 36 | L 5-2 | vs OAK | 31 | 166 | - | 7.0 | 6 | 2 | 2 | 0 | 2 | 6 | 117 | 40 | 77 | 66% | 12-12 | 4.00 | 1.29 |
| 1998-09-22 | Jamie Moyer | L | 36 | L 7-6 | vs OAK | 34 | 262 | W | 6.0 | 9 | 4 | 4 | 1 | 0 | 9 | 117 | 46 | 71 | 61% | 15-9 | 3.54 | 1.18 |
| 1998-09-23 | Ken Cloude | R | 24 | W 3-8 | vs OAK | 30 | 39 | - | 6.1 | 8 | 3 | 3 | 1 | 3 | 7 | 122 | 44 | 78 | 64% | 8-10 | 6.39 | 1.72 |
| 1998-09-24 | Mac Suzuki | R | 23 | W 3-9 | vs TEX | 5 | 5 | L | 2.1 | 7 | 6 | 5 | 0 | 4 | 1 | 77 | 37 | 40 | 52% | 1-2 | 6.12 | 1.80 |
| 1998-09-25 | Paul Abbott | R | 31 | L 15-4 | vs TEX | 4 | 19 | W | 8.0 | 6 | 2 | 2 | 1 | 3 | 7 | 112 | 43 | 69 | 62% | 3-1 | 3.96 | 1.36 |
| 1998-09-26 | Jeff Fassero | L | 36 | L 5-2 | vs TEX | 32 | 167 | W | 7.0 | 7 | 2 | 2 | 1 | 1 | 8 | 99 | 35 | 64 | 65% | 13-12 | 3.96 | 1.28 |
| 1998-09-27 | Paul Spoljaric | L | 28 | W 6-12 | vs TEX | 6 | 7 | L | 3.2 | 9 | 7 | 7 | 1 | 4 | 5 | 80 | 31 | 49 | 61% | 4-6 | 6.51 | 1.70 |